/*
 * Copyright © 2004-2021 L2J DataPack
 * 
 * This file is part of L2J DataPack.
 * 
 * L2J DataPack is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * L2J DataPack is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.l2jserver.datapack.handlers.admincommandhandlers;

import static com.l2jserver.gameserver.config.Configuration.general;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import com.l2jserver.commons.database.ConnectionFactory;
import com.l2jserver.gameserver.data.xml.impl.AdminData;
import com.l2jserver.gameserver.handler.IAdminCommandHandler;
import com.l2jserver.gameserver.model.L2AccessLevel;
import com.l2jserver.gameserver.model.L2World;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.network.SystemMessageId;

/**
 * Change access level command handler.
 */
public final class AdminChangeAccessLevel implements IAdminCommandHandler {
	private static final String[] ADMIN_COMMANDS = {
		"admin_changelvl"
	};
	
	@Override
	public boolean useAdminCommand(String command, L2PcInstance activeChar) {
		String[] parts = command.split(" ");
		if (parts.length == 2) {
			try {
				int lvl = Integer.parseInt(parts[1]);
				if (activeChar.getTarget() instanceof L2PcInstance) {
					onlineChange(activeChar, (L2PcInstance) activeChar.getTarget(), lvl);
				} else {
					activeChar.sendPacket(SystemMessageId.INCORRECT_TARGET);
				}
			} catch (Exception e) {
				activeChar.sendMessage("Usage: //changelvl <target_new_level> | <player_name> <new_level>");
			}
		} else if (parts.length == 3) {
			String name = parts[1];
			int lvl = Integer.parseInt(parts[2]);
			L2PcInstance player = L2World.getInstance().getPlayer(name);
			if (player != null) {
				onlineChange(activeChar, player, lvl);
			} else {
				try (Connection con = ConnectionFactory.getInstance().getConnection();
					PreparedStatement ps = con.prepareStatement("UPDATE characters SET accesslevel=? WHERE char_name=?")) {
					ps.setInt(1, lvl);
					ps.setString(2, name);
					ps.execute();
					
					if (ps.getUpdateCount() == 0) {
						activeChar.sendMessage("Character not found or access level unaltered.");
					} else {
						activeChar.sendMessage("Character's access level is now set to " + lvl);
					}
				} catch (SQLException se) {
					activeChar.sendMessage("SQLException while changing character's access level");
					if (general().debug()) {
						se.printStackTrace();
					}
				}
			}
		}
		return true;
	}
	
	@Override
	public String[] getAdminCommandList() {
		return ADMIN_COMMANDS;
	}
	
	/**
	 * @param activeChar the active GM
	 * @param player the online target
	 * @param lvl the access level
	 */
	private static void onlineChange(L2PcInstance activeChar, L2PcInstance player, int lvl) {
		if (lvl >= 0) {
			if (AdminData.getInstance().hasAccessLevel(lvl)) {
				final L2AccessLevel acccessLevel = AdminData.getInstance().getAccessLevel(lvl);
				player.setAccessLevel(lvl);
				player.sendMessage("Your access level has been changed to " + acccessLevel.getName() + " (" + acccessLevel.getLevel() + ").");
				activeChar.sendMessage(player.getName() + "'s access level has been changed to " + acccessLevel.getName() + " (" + acccessLevel.getLevel() + ").");
			} else {
				activeChar.sendMessage("You are trying to set unexisting access level: " + lvl + " please try again with a valid one!");
			}
		} else {
			player.setAccessLevel(lvl);
			player.sendMessage("Your character has been banned. Bye.");
			player.logout();
		}
	}
}
